Dark Energy | sciencenewsnet.in

Building a Giant 2D Map of the Universe to Prepare for the Largest 3D Map

January 13, 2021 sarah Jonas Dark Energy, dark energy spectroscopic instrument, data, Department Of Energy, DESI, DOE, Galaxies, High Energy Physics, Lawrence Berkeley National Laboratory, National Energy Research Scientific Computing Center, NERSC, NOIRLab, Quasars, Spectroscopy

Before DESI, the Dark Energy Spectroscopic Instrument, can begin its 5-year mission from an Arizona mountaintop to produce the largest 3D sky map yet, researchers first needed an even bigger 2D map of the universe.

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Jeffrey Newman: Then and Now / 2010 Early Career Award Winner

December 21, 2020 sarah Jonas Astrophyics, Dark Energy, LSST

Physics professor Jeffrey Newman at the University of Pittsburgh is improving the methods for calculating the distances and developing target strategies for Dark Energy Spectroscopic Instrument experiments. These activities are supporting the search for answers about dark energy.

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Sensors of world’s largest digital camera snap first 3,200-megapixel images at SLAC

September 8, 2020 sarah Jonas Cosmology, Dark Energy, dark matter, LSST, Slac, SLAC National Accelerator Laboratory, Telescope

Crews at the Department of Energy’s SLAC National Accelerator Laboratory have taken the first 3,200-megapixel digital photos – the largest ever taken in a single shot – with an extraordinary array of imaging sensors that will become the heart and soul of the future camera of Vera C. Rubin Observatory.

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Lab Researcher and Physics Undergrad Shares Poster Project Honoring Black Physicists

August 28, 2020 sarah Jonas art, Berkeley, Berkeley Lab, Dark Energy, dark energy spectroscopic instrument, DESI, Discrimination, Diversity, George Floyd, Lawrence Berkeley National Laboratory, LBNL, Racial Discrimination, UC Berkeley, University of California, Berkeley

Inspired by the nation’s grappling with issues of race and racial discrimination, UC Berkeley physics major and Berkeley Lab student assistant Ana Lyons turned to art as a way to contribute to the conversation.

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Five thousand eyes on the skies: Scientists choreograph robots to observe distant galaxies

July 6, 2020 sarah Jonas ASTROPHYSICS, Cosmology, Dark Energy, dark energy spectroscopic instrument, DESI

Scientists have begun operating the Dark Energy Spectroscopic Instrument, or DESI, to create a 3-D map of over 30 million galaxies and quasars that will help them understand the nature of dark energy. The new instrument is the most advanced of its kind, with 5,000 robotic positioners that will enable scientists to gather more than 20 times more data than previous surveys. Researchers at Fermilab helped develop the software that will direct these positioners to focus on galaxies several billion light-years away and are currently in the process of fine-tuning the programs used before the last round of testing later this year.

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Drones Help Calibrate Radio Telescope at Brookhaven Lab

June 25, 2020 sarah Jonas Brookhaven National Laboratory, Cosmology, Dark Energy, dark matter, Drone, Prototype

Cosmologists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory are experimenting with a prototype radio telescope, called the Baryon Mapping Experiment (BMX). Built at the Lab in 2017, the prototype serves as a testbed for managing radio interference and developing calibration techniques. Lessons learned from the prototype could pave the way for Brookhaven to develop a much larger radio telescope in collaboration with other national Labs, universities, and international partners.

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Now Complete, Telescope Instrument is Poised to Begin Its Search for Answers About Dark Energy

June 1, 2020 sarah Jonas ASTROPHYSICS, Berkeley, Berkeley Lab, Dark Energy, dark energy spectroscopic instrument, DESI, Kitt Peak National Observatory, Lawrence Berkeley National Laboratory, LBNL, Spectroscopy, U.S. Department Of Energy

Even as the Dark Energy Spectroscopic Instrument, or DESI, lies dormant within a telescope dome on a mountaintop in Arizona, due to the COVID-19 pandemic, the DESI project has moved forward in reaching the final formal approval milestone prior to startup.

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DESI Team Prepares for Telescope Instrument’s Restart after Unexpected Shutdown

May 22, 2020 sarah Jonas Arizona, Berkeley, Berkeley Lab, Dark Energy, dark energy spectroscopic instrument, DESI, Galaxies, Kitt Peak National Observatory, Lawrence Berkeley National Laboratory, LBNL, Quasars, Telescope

Despite a temporary shutdown of the Dark Energy Spectroscopic Instrument in Arizona – which was in its final stages of testing in preparation to begin mapping millions of galaxies in 3D when the pandemic struck – a variety of project tasks are still moving forward.

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Looking Up From the Mountaintop: Q&A with a Telescope Instrument’s Lead Observer

March 26, 2020 sarah Jonas ASTROPHYSICS, Berkeley, Berkeley Lab, Cosmology, Dark Energy, dark energy spectroscopic instrument, DESI, Kitt Peak National Observatory, Lawrence Berkeley National Laboratory, LBNL, Mayall telescope, Universe

In this Q&A Satya Gontcho A Gontcho, a lead observer for the Dark Energy Spectroscopic Instrument (DESI), shares her experiences at the DESI site near Tucson, Arizona, including evening observing stints to run through detailed checklists and probe how the instrument’s components are working.

Announcement

Register to Join a Special April 16 Media Tour of a Telescope Instrument that Will Create a 3D Map of Millions of Galaxies

February 21, 2020 sarah Jonas Berkeley, Berkeley Lab, Dark Energy, Galaxies, Galaxy, Lawrence Berkeley National Laboratory, LBNL, Spectroscopy

Members of the media are invited to attend a mid-April dedication of the Dark Energy Spectroscopic Instrument (DESI), which is scheduled to begin its five-year mission to construct a 3D map of the universe in the coming months.

Research Results

Connecting the dots in the sky could shed new light on dark matter

January 13, 2020 sarah Jonas 0 Comments Dark Energy, Dark Energy Survey, dark matter, Slac, SLAC National Accelerator Laboratory

Astrophysicists have come a step closer to understanding the origin of a faint glow of gamma rays covering the night sky. They found that this light is brighter in regions that contain a lot of matter and dimmer where matter is sparser – a correlation that could help them narrow down the properties of exotic astrophysical objects and invisible dark matter.

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The Big Questions: Josh Frieman on Dark Energy

December 17, 2019 sarah Jonas 0 Comments Dark Energy, Distinguished Scientist, distinguished scientists fellows

The Big Questions series features perspectives from the five recipients of the Department of Energy Office of Science’s 2019 Distinguished Scientists Fellows Award describing their research and what they plan to do with the award. Josh Frieman is the division head of particle physics at Fermilab.

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